Trolley-pole



M. D. WATROUS.l TROLLEY PLE.

APPLlcATIoN msn ma. x1, 192|.

Patented Apr. 5, 1921.

aww/wm Mar/ 146,77'005, @u @ad TROLLEY-POLE.

Application led January 17, 1921.

T 0 all whom t may concern Be it known that I, MARTIN D. l/VATRoUs, a citizen of the United States, residing at Ansonia, in the county of New Haven and State of Connecticut, have invented new and useful Improvements in Trolley-Poles, of which the following is a specification.

This invention relates to improvements in trolley-pole construction. Y

lt is a matter of common observation that the trolley-wheel of an electric car frequently leaves the wire when the car is rounding a curve or taking a switch or when the trolleyV `wire is for other reasons offset from the longitudinal axis of the car. My inventionvv aims to eliminate this diliiculty by providing a trolley-wheel support which is free to rotate to a limited extent relatively to the trolley-pole whereby the groove of the trolley-wheel may be continually positioned in the direction of the wire so that there is little tendency for the flanges of the wheel to slip out of engagement with the trolley wire.

Furthermore7 as trolley-poles are generally constructed, after the trolley-wheel leaves the wire it is frequently difficult to position the trolley-wheel in proper -alinement therewith which often is thek cause of serious delays. My invention also aims to eliminate this cause of delay and inconvenience by providing means on the trolleypole for facilitating the inding of the wire and the positioning of the trolley-wheel so that its groove may readily engage the same.

My invention is more fully described in the following speciiication and particularly pointed out in the claims. f

ln the accompanying drawings Figure 1 is a side elevation of the preferred form of my invention.

F ig. 2 is an end view partially in section of the trolley-wheel engaging the trolley wire.

Fig. 3 is a top plan view with the trolley wire omitted.

The numeral 10 represents a trolley-pole which is mounted on a car in the usual manner so as to permit horizontal and vertical swinging movements and is spring pressed upward toward the trolley wire 11. The casting or bracket 12'is secured to the upper end of the trolley-pole 10 by means of pins or other' fastening devices 13. The bracket 12 is provided with two hollow cylindrical bosses 14: and 15 in which are in- Specication of Letters Patent.

Patented api. 5, i921.

Serial No. 437,976.

serted respectively the trolley polo 10 and the depending shaft-,.16 of a trolley-wheel support 19. The bosses 14, 15 are arranged in spaced relation and joined by thearm 17 of the casting; The bracket 12 is provided with guides or fingers 18 which project upwardly from the boss 14C and are arranged equi-distant on each side of the longitudinal axis of the trolley-pole Y rlhe trolley-wheel support is in the form of a yoke or forked bearing 19 which is integral withthe shaft 16, and the side members 2Oj 21 of the yoke project upwardly for receiving` the trolley-wheel 22 therebetween. The side members 2O and 21 are provided 'with apertures in transverse alinement andv the axle 23 is mounted therein. lThe axle 23 is provided with threaded ends nfor engaging the .retaining nuts 24 and the trolley wheel 22 is rotatably mounted on the intermediate plain cylindrical surface of said axle. The yoke 19 at its' base is provided with a depending annular flange -25 adapted to house a ball-thrust bearing 26 which Vis inserted within the annular flange,. about the shaft 16, and between the Vbearing yoke 19 and the boss 15 of the casting 12. The guides, as is apparent in Fig. 3, are spaced wider apart than the flanges of the trolley-wheel 22 so that it is easier to locate the trolley wire between said guides than between the flangesV aperture formed in the shaft extension 16 in alinementy with said recess. being of greater width than the head of the screw 28 and being symmetrically arranged in relation to the vertical axis of the socket portion 15 permits the yoke 19 and the trolley-wheel mounted therein to have a limited angular turning movement on the ball-bearing 26. The screw 28 in conjunction with the base of the recess 27 also acts to retain the trolley-wheel on the thrust bearing.

lfVhen it is desired to'place the trolleywheel on the trolley-wire, the trolley wire is rst located between the guides 18 and then by a fineradjustment the wire may be readily located within the groove of the trolley-` wheel. Upon rounding a curve or when the trolley wire is offset from the longitudinal axis of the car, the trolley-wheel supportY by reason of its movement in the boss 15 may assume an angular position relatively thereto so thatJthe groove of the trolley-wheel The recess 27-y may be located in the direction of the wire. The stop 28 limits' this angular movement of the trolley-wheel so that' the same may not assume such proportions as to cause interference between the guides 18 and the trolley wire.

Having described my invention, what l claim as new and desire to secure by Letters Patent, is

l. A trolley-pole having a bracket secured to the upper end thereof, spaced guides fixed to and projecting from said bracket for locating the trolley wire, a trolley-wheel support rotatably mounted in said bracket, and a trolley-wheel rotatably mounted in said support, said guides being located in front of and extending adjacent t0 the periphery of the trolley-wheel.

2. A trolley-pole having a bracket secured to the upper end thereof, guides Xed to and projecting from said bracket tor locating` the trolley-Wire, said bracket including an arm having an opening therein, a yoke provided with a shaft extension adapted to be journaled in said opening and a trolley wheel mounted in said yoke.

3. A trolley-pole having a bracket secured to the upper end thereof, guides fixed to and projecting from said bracket in spaced relation for finding the trolley wire, a tr0lleywheel-support rotatably mounted on said bracket and means for limiting the degree ot rotation of said support relatively to the bracket.

Y Ll. A trolley-pole having a bracket secured to the upper end thereof, including two arms, means tor securing the trolley-pole to one of said arms, fixed guides projecting from said arm in spaced relation, a yoke provided with a shaft extension adapted to be journaled in the other arm of the bracket, and a c hanged trolley-wheel rotatably mounted in said yoke, said guides being spaced apart a distance slightly greaterthan the flanges ot the trolley-wheel for facilitating the finding of the trolley wire.

In testimony whereof l have here-untoset my hand in presence of two subscribing witnesses.

MARTIN D. WATRoUs;

lVitnesses JOSEPH l. HooToN, ALBERT H. YUDKIN. 

